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US4683982A Expired / Lapsed US ⏱️ 0.0 years remaining

Ladder leveler apparatus

Assignee: Individual
•
Filing: 1986-10-06
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Granted: 1987-08-04
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Expires: 2006-10-06
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Abstract

Abstract Ladder leveler apparatus includes a frame portion, a support portion, an affixing portion, an aligning portion and a positioning portion. The frame portion includes an elongated U-shaped section, the U-shaped section including a main section having a width slightly larger than the width of a ladder leg. Transverse side sections extend from the main section adjacent side edges thereof along substantially the entire length of the main section, the side sections having a width at least about equal to the thickness of the ladder leg. The main section includes at least one longitudinal channel section. The support portion includes a foot member extending from one end of the frame portion, the foot member being pivotally connected to the ladder leg. The foot member includes a connector section and a base section disposed on a free end of the connector section remote from the ladder leg. The affixing portion includes at least one bolt member extending through the longitudinal channel section of the main section and through a transverse opening in the ladder leg. An adjustable fastener is disposed on the free end of the bolt member to selectively secure the main section to the ladder leg. The aligning portion includes mechanism securable to the frame portion disposed closely adjacent to the periphery of the ladder leg remote from the main section. The positioning portion includes a transverse pin member extending through aligned openings in the side sections.

Inventors

  • 👤 Gerald G. Baker

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 18:11
CPC Classifications
E; E06; E06C; E06C7/00; E06C7/42; E06C7/44

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 307 words
Ladder leveler apparatus including a frame portion, a support portion, an affixing portion, an aligning portion and a positioning portion; said frame portion including an elongated U-shaped section, said U-shaped section including a main section having a width slightly larger than the width of a ladder leg, transverse side sections extending from said main section adjacent side edges thereof along substantially the entire length of said main section, said side sections having a width at least about equal to the thickness of said ladder leg, said main section including at least one longitudinal channel section; said support portion including a foot member extending from one end of said frame portion, said foot member being pivotally connected to said ladder leg, said foot member including a connector section and a base section disposed on a free end of said connector section remote from said ladder leg; said affixing portion including at least one bolt member extending through said longitudinal channel section of said main section and through a transverse opening in said ladder leg, adjustable fastening means disposed on the free end of said bolt member to selectively secure said main section to said ladder leg; said aligning portion including means securable to said frame portion disposed closely adjacent to the periphery of said ladder leg remote from said main section; said positioning portion including a transverse pin member extending through aligned openings in said side sections; whereby said apparatus can be connected to a ladder leg with said bolt member, said apparatus slid along said ladder leg to a desired position, said fastening means tightened on said bolt member to fix the position of said main section on said ladder leg, said pin member inserted through said side sections and said aligning means secured to said frame portion to provide a safe extension of said ladder leg.
Claim 2
Dependent Claim 307 words
Ladder leveler apparatus including a frame portion, a support portion, an affixing portion, an aligning portion and a positioning portion; said frame portion including an elongated U-shaped section, said U-shaped section including a main section having a width slightly larger than the width of a ladder leg, transverse side sections extending from said main section adjacent side edges thereof along substantially the entire length of said main section, said side sections having a width at least about equal to the thickness of said ladder leg, said main section including at least one longitudinal channel section; said support portion including a foot member extending from one end of said frame portion, said foot member being pivotally connected to said ladder leg, said foot member including a connector section and a base section disposed on a free end of said connector section remote from said ladder leg; said affixing portion including at least one bolt member extending through said longitudinal channel section of said main section and through a transverse opening in said ladder leg, adjustable fastening means disposed on the free end of said bolt member to selectively secure said main section to said ladder leg; said aligning portion including means securable to said frame portion disposed closely adjacent to the periphery of said ladder leg remote from said main section; said positioning portion including a transverse pin member extending through aligned openings in said side sections; whereby said apparatus can be connected to a ladder leg with said bolt member, said apparatus slid along said ladder leg to a desired position, said fastening means tightened on said bolt member to fix the position of said main section on said ladder leg, said pin member inserted through said side sections and said aligning means secured to said frame portion to provide a safe extension of said ladder leg.
Claim 3
Dependent Claim 25 words
Ladder leveler apparatus according to claim 1 wherein said main section and said side sections of said frame portion are formed as a unitary structure.
Claim 4
Dependent Claim 20 words
Ladder leveler apparatus according to claim 1 wherein said frame portion has a length at least twice the width thereof.
Claim 5
Dependent Claim 30 words
Ladder leveler apparatus according to claim 1 wherein said main section includes a plurality of spaced longitudinal channel sections and said affixing portion includes a plurality of bolt members therethrough.
Claim 6
Dependent Claim 23 words
Ladder leveler apparatus according to claim 1 wherein said channel section extends along a major part of the length of said frame portion.
Claim 7
Dependent Claim 18 words
Ladder leveler apparatus according to claim 1 wherein said base section of said foot member includes gripping means.
Claim 8
Dependent Claim 25 words
Ladder leveler apparatus according to claim 1 wherein said aligning portion includes screw members extending through said side sections into contact with said ladder leg.
Claim 9
Dependent Claim 28 words
Ladder leveler apparatus according to claim 1 wherein said aligning portion includes a right angle section disposed along the side of said ladder leg opposite said main section.
Claim 10
Dependent Claim 25 words
Ladder leveler apparatus according to claim 8 wherein said aligning portion is secured to said frame portion through said bolt member of said affixing portion.
Claim 11
Dependent Claim 25 words
Ladder leveler apparatus according to claim 8 wherein said aligning portion is secured to said frame portion through screw members extending through said side sections.
Claim 12
Dependent Claim 15 words
Ladder leveler apparatus according to claim 1 wherein said aligning portion includes a plate member.
Claim 13
Dependent Claim 19 words
Ladder leveler apparatus according to claim 1 wherein said aligning portion includes a pair of spaced right angle sections.
Claim 14
Dependent Claim 23 words
Ladder leveler apparatus according to claim 1 wherein said pin member includes retaining means holding the position thereof between said side frame sections.
Claim 15
Dependent Claim 23 words
Ladder leveler apparatus according to claim 1 including elongated flexible means connecting a head end of said pin member with said frame portion.

References Cited (Backward Citations)

US1751173A Cited
AU112531A Cited
US2485413A Cited
US3394774A Cited
US4236603A Cited
US4423797A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-08-03 1991-02-02 1991-08-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-08-03 1995-02-02 1995-08-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-08-03 1999-02-02 1999-08-04 $7700.00 Window Closed / Lapsed

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